Functionalized oligothiophene-based heterocyclic aromatic fluorescent compounds with various donor–acceptor spacers and adjustable electronic properties: a theoretical and experimental perspective
作者:Tao Tao、Hui-Fen Qian、Kun Zhang、Jiao Geng、Wei Huang
DOI:10.1016/j.tet.2013.06.087
日期:2013.9
Syntheses, characterizations, optical, electrochemical, and thermal properties of a family of linear oligothiophene-based heterocyclic aromatic fluorescent compounds are described herein. They all have effective π-conjugated systems with D–π–D or A–π–A structures as well as different bromo, thiocyano, formyl, and triphenylamino tails. X-ray single-crystal structure of 2TPA2T methanol semisolvate reveals
本文描述了基于线性低聚噻吩的杂环芳族荧光化合物家族的合成,表征,光学,电化学和热性质。它们都有具有D–π–D或A–π–A结构以及不同的溴,硫氰基,甲酰基和三苯氨基尾基的有效π共轭体系。2TPA2T的X射线单晶结构半溶剂甲醇显示出在相邻芳族杂环之间具有不同二面角的反式构型。已经进行了理论和实验研究,以揭示与具有可调电子性能的相关化合物的区别。还讨论了引入不同的D / A功能化尾部对带隙收敛的影响,其中通过噻吩基环系数(n corr)校正的收敛行为显示出基于HOMO-LUMO间隙外推的线性拟合的更好相关性在B3LYP / 6-31G ∗级别。